Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.java.programmer > #9936
| Newsgroups | comp.lang.java.programmer |
|---|---|
| From | Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> |
| Subject | Re: A strange behaviour of a File property |
| References | (2 earlier) <j9kion$7o7$1@dont-email.me> <slrnjbrpia.fvg.avl@gamma.logic.tuwien.ac.at> <4ebef267$0$290$14726298@news.sunsite.dk> <slrnjbu6hr.fvg.avl@gamma.logic.tuwien.ac.at> <j9n919$q0q$1@dont-email.me> |
| Message-ID | <slrnjc0bd8.fvg.avl@gamma.logic.tuwien.ac.at> (permalink) |
| Date | 2011-11-13 20:50 +0000 |
Eric Sosman <esosman@ieee-dot-org.invalid> wrote:
> Speaking as a person who wrote code that tried to mediate
> between VMS ("structured") file names and Unix ("just glob it") paths,
> I am here to tell you that there are many subtle traps. Version numbers
> inevitably got garbled, if not "in translation" then "in manipulation"
> on the other side of the fence. The fact that the parent directory of
>
> SYS$DISK:[USERS.ERIC.PROJECT]README.TXT;22
> was
> SYS$DISK:[USERS.ERIC]PROJECT.DIR;1
>
> baffled innumerable Unixoid programs that thought they could just "take
> everything before the rightmost separator" to get the parent's name.
> Anybody who thinks the mapping is half a day's work has got another
> think coming -- and weeks of unplanned labor, too. I've got the scars.
I'm still wondering, how this effort was even worth it.
Dinosaur systems typically are left with the software that ran on them
since Jura, and "new SW" often means binary-patching the running
processes directly in memory, rather than deploying brand-new (i.e. less
than 10 years old) code onto them. (Not entirely serious now. ;-)
Anyway, multiplying your effort for the task with the probability of
some random code going to be deployed on openvms makes it rather
cheap after all. Cheaper than having to teach coders to write file
name manipulations portably beyond choice of separator char in the
first place.
Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
A strange behaviour of a File property alelvb@inwind.it - 2011-11-11 05:45 -0800
Re: A strange behaviour of a File property Lew <lewbloch@gmail.com> - 2011-11-11 07:34 -0800
Re: A strange behaviour of a File property alelvb@inwind.it - 2011-11-11 09:28 -0800
Re: A strange behaviour of a File property Lew <lewbloch@gmail.com> - 2011-11-11 14:17 -0800
Re: A strange behaviour of a File property alelvb@inwind.it (Alexo) - 2011-11-12 15:04 +0100
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-12 09:15 -0500
Re: A strange behaviour of a File property alelvb@inwind.it (Alexo) - 2011-11-12 16:17 +0100
Re: A strange behaviour of a File property Zlatko Đurić <zladuric@gmail.com> - 2011-11-12 16:09 +0100
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-12 10:13 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-11 16:25 +0000
Re: A strange behaviour of a File property alelvb@inwind.it - 2011-11-11 09:42 -0800
Re: A strange behaviour of a File property Arne Vajhøj <arne@vajhoej.dk> - 2011-11-11 13:24 -0500
Re: A strange behaviour of a File property Lew <lewbloch@gmail.com> - 2011-11-11 14:13 -0800
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-11 20:38 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-12 03:21 +0000
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-12 08:26 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-12 22:09 +0000
Re: A strange behaviour of a File property Arne Vajhøj <arne@vajhoej.dk> - 2011-11-12 17:40 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-13 01:28 +0000
Re: A strange behaviour of a File property Arne Vajhøj <arne@vajhoej.dk> - 2011-11-12 20:42 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-13 12:15 +0000
Re: A strange behaviour of a File property Martin Gregorie <martin@address-in-sig.invalid> - 2011-11-13 12:42 +0000
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-13 13:06 +0000
Re: A strange behaviour of a File property Arne Vajhøj <arne@vajhoej.dk> - 2011-11-12 17:25 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-13 01:15 +0000
Re: A strange behaviour of a File property Arne Vajhøj <arne@vajhoej.dk> - 2011-11-12 20:40 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-13 12:42 +0000
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-12 21:11 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-13 20:50 +0000
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-14 08:18 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-14 17:38 +0000
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-14 21:51 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-15 14:17 +0000
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-15 22:20 -0500
Re: A strange behaviour of a File property Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-16 12:14 +0000
Re: A strange behaviour of a File property Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-16 08:10 -0500
Re: A strange behaviour of a File property Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-11-11 19:46 -0800
Re: A strange behaviour of a File property Owen Jacobson <angrybaldguy@gmail.com> - 2011-11-14 00:24 -0500
Re: A strange behaviour of a File property Lew <lewbloch@gmail.com> - 2011-11-13 22:00 -0800
Re: A strange behaviour of a File property Roedy Green <see_website@mindprod.com.invalid> - 2011-11-12 05:00 -0800
Re: A strange behaviour of a File property Arne Vajhøj <arne@vajhoej.dk> - 2011-11-12 09:15 -0500
csiph-web